Hi, On Freitag, 8. März 2019 05:30:38 CET Stefan Monnier wrote: > My OpenVPN client setup just stopped working, maybe/likely linked to a recent > update of Debian (testing). > > The end result is that the openvpn daemon looks happy and gives me the right > syslog messages, yet the interface gets no IP address (and no routes either, > of > course):
One of our VPN users encountered the same issue on Ubuntu 20.04, which lead us to investigate this. The cause of this issue is netscript-2.4[1], a rather old and obscure alternative ifup/ifdown implementation. In its default configuration a netscript systemd service instance is automatically started shortly after the OpenVPN tunnel interface is created: > Jan 25 11:12:41 ceviche systemd[1]: Started Netscript ifup for tun0. > [...] > Jan 25 11:12:41 ceviche sh[9617]: Configuring interface: tun0. netscript then overwrites/removes the interface configuration set by OpenVPN, which in turn removes the routes. We did not investigate further, how to configure netscript-2.4 correctly, as the user replaced it with ifupdown, which is what they wanted in the first place anyway. HTH Best regards Sebastian Schrader
